Button.



H. T. KRAVIK.

BUTTON.

APPLICATION FILED APR.2B, 1915.

1,209,170. Patented Dec. 19,1916. 7

HERIBR AND T. KRAVIK, OF RJUKAN, VESTFJORDDALEN,

NORWAY, ASSIGNOR fro ALFRED HOLTER, OF RJUKAN, NORWAY.

BUTTON.

Application filed April 28, 1915. Serial No. 24,603.

To all whom it may concern:

Be it known that I, HERBRAND TORSTENSEN KRAVIK, a subject of the King of Norway, and residing at Rjukan, Vestfjorddalen, Norway, have invented a certain new and useful Improved Button, of which the following is a specification.

The present invention relates to a button, consisting of two parts of that kind, which do not need to be sewn to the stuff on which it is applied, but is fastened in such a manner, that one of said parts is provided with a pin or stalk or the like, which is put through the stuff. It is true, that buttons consisting of two parts are known, being pressed together on each side of the stufl; but those buttons have a great draw-back, as when once fastened to the stuff, they cannot be removed from it.

According to the present invention this inconvenience is eliminated, the object of the invention allowing an easy removal or exchange of the button.

The invention is illustrated in various constructional forms on the accompanying drawings, in'which Figure 1 is a sectional side view of the head of one form of the button,-along the line II in Fig. 2, constructed in accordance with the present invention. Fig. 2 shows a reverse plan view, the bottom cover being removed. Fig. 3 is a side view of the stem or other part of the button. Fig. 4 is a section along the line IIII in Fig. 3. Fig. 5 shows a detail.

According to the present invention one part of a button, viz., the stem or shank is suitably made in one piece, having at its lower end a plate 1, that tapers upwardly and ends in a pin or stalk 2, which on diametrically opposite sides is provided with parallel incisions 3. The other part forming the head of the button is inwardly provided with a steel spring 4 or the like. The spring is bent in several suitable turns and its terminals are located in two inclining grooves 5, 5 of a casing 6.

When the pin 2 enters the mouth of the casing 6, it-forces the terminals of the spring to move upwardly along the grooves 5, 5 until the top of the pin is allowed to pass the spring, after which the grooves 3 will engage with the terminals of said spring, thus Specification of Letters Patent.

Patented Dec. 19, 1916.

forming the fastening device for the two parts of the button. When an efiort is made to force the parts asunder, the result will only be, that the terminals of the spring will engage still more firmly with the lower end of the groove owing to the inclined position of the latter. The separation of the parts of the button, however, may easily be effected by pressing them together toward each other, until the terminals of the spring have ceased the engagement with the grooves 5 of the casing and then by turning the parts relatively to one another through an angle of 90. The terminals thus will only make contact with such surface parts of the pin 2, which are not provided with grooves and, therefore, the pin may easily be removed from the casing 6. I

A modified form of the constructions illustrated in Figs. 1 to 4: is shown in Fig. 5, where the formerly mentioned steel spring 4 is replaced by a circular spring 7, stamped out of a plate and provided with inwardly extending tongues 8, 8, the tongues taking the place of the terminals of said spring. It will be seen, that the spring according to Fig. 5 may be used with both of the constructional forms above illustrated.

Though I have described with great particularity of detail the object of my invention, yet it will be understood, that the invention is not limited to the specific devices described. Some further modifications of the same and additions thereto are possible to those skilled in the art without departure from the invention.

Having now described my invention what I claim as new and desire to secure by Letters Patent is 1. Improved button adapted to be fastened in position without sewing, comprising in combination, a head forming one part, a casing therein provided with double inclined slots, a spring member in the head, the two free ends of which engage the inclined slots in the casing, and a stem engaging the casing and forming the other part provided with parallel grooves at the opposite points of a diameter, said grooves engaging the free ends of the spring. Y

2. Improved button adapted to be fastened in position without sewing, comprising in combination, a head forming one part, a

doublyslotted easing therein, a flat'spring In testimony whereof I have signed my memberin the'headytwo fingers projeeting nanieto this specification in the presence of 10 inwardlyhof the member and engaging the two subscribing Witnesses. slots-int e 'easing and a stem enga in the 5 casing and formiiig the other part groi ided KBAVIK' with parallel grooves at the opposite points Witnesses:

of a diameter, said grooves engaging the said EINA A. OFsHAD, fingers. ANDERS LOBERG.

Copies of this patent may be obtained for five gents each, by -addressing the Commissioner of Patents,

Washington, I). 'U. 

